Australian Special Operations Command Wyvern

[sailorbear]

Hi there, hope this is the right place to ask this? I've recently acquired a Special Operations Command patch, which features a wyvern of exactly the same design as that used by the Wessex Division/Brigade/Regiment. My question is. what relevance does the wyvern have, why the wyvern, which has a significant ancient historical relevance to the counties of south western England but surely not Australia? and why a wyvern, when in most western special forces forces either a sword or fighting knife is used for a unit or command insignia? Anyone have any ideas?

Regards

Tony